Supplemental Audio 2. High-frequency binaural beat (listen over headphones). The two tones are now 2000 and 2008 Hz. When listening over headphones the spatial roughness is no longer heard, as the phase is no longer preserved above 1500 Hz. Note: when placing both speakers of the headphone next to one ear, the interaction of the acoustic waveforms cause a regular (acoustical) beat, which is easily heard.

Supplemental audio from the 2019 review by Philip X. Joris and Marcel van der Heijden, "Early Binaural Hearing: The Comparison of Temporal Differences at the Two Ears," from the Annual Review of Neuroscience: https://www.annualreviews.org/doi/10.1146/annurev-neuro-080317-061925?utm_source=soundcloud&utm_medium=ne.joris&utm_campaign=suppvideo

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